Chii chinonzi commeter?

Kazhinji, iyo dhaya yeiyo pombi inogona kukamurwa muOnder diameter (de), yemukati diameter (d), zita rezita (DN).
Pazasi kuti ndikupe musiyano pakati peiyo "de, D, mutsauko.

DN ndiyo zita remazwi reiyo pombi

Ongorora: Iyi haisi iyo yekunze dhisiki kana iyo yemukati mehudyu; inofanirwa kuve nehukama nekuvandudzwa kwekutanga kwePombi Injini uye Imperial Units; Kazhinji inoshandiswa kurondedzera yakashongedzwa simbi pombi, inoenderana neiyo Imperial mauniti seinotevera:

4-Chikamu Pipi: 4/8 Inch: DN15;
6-miniti Pipe: 6/8 inch: Dn20;
1 inch pombi: 1 inch: dn25;
Inch maviri pombi: 1 uye 1/4 inches: DN32;
Hafu-inch pombi: 1 uye 1/2 inches: DN40;
Maviri inch pombi: 2 inches: Dn50;
Matatu-inch pombi: 3 inches: Dn80 (nzvimbo zhinji dzakanyorwawo seDN75);
Ina-inch pombi: 4 inches: DN100;
Mvura, gasi kutapurirana simbi pombi (galvanized simbi pombiKana kuti isina-baranized simbi pombi), cast iron pombi, simbi-yepurasitiki composite pombi uye phongsyl chloride (PVC) pombi uye imwe nzvimbo yezita,

 

De inonyanya kunoreva kune iyo yekunze dhaya yeiyo pombi
Kushandiswa kwakawanda kwaDo kutaura, kunoda kunyorwa muchimiro chekunze dhayamita X madziro madziro;

Inonyanya kushandiswa kurondedzera:Seamless Steel pombi, PVC uye imwe mapurasitiki mapurasitiki, uye dzimwe pombi dzinoda girazi rakajeka.
Tora BALLIED YEMAHARA STEEL PIPE semuenzaniso, neDN, DE maviri nzira dzekunze dzinotevera:
DN20 De25 × 2.5mm
DN25 De32 × 3mm
DN38 De40 × 4mm
DN40 DE50 × 4mm

......

 

D kazhinji inoreva iyo yemukati yedhipatimendi yeiyo pombi, D inoratidza iyo yemukati dhaya yekongiri pombi, uye φ inoratidza iyo dhayimendi yeiyo yakajairika denderedzwa

.
Semuenzaniso, φ25 × 3 zvinoreva pombi ine mutyairi wekunze kwe25m uye rusvingo rwamadziro rwe 3mm.
Seamless simbi pombi kana isina-ferus simbi pombi, inofanira kuve yakanyorwa "kuyamadzwa kwehuswa
Semuenzaniso: φ107 × 4, ipo φ inogona kusiiwa.
China, iso neJapan chikamu cheiyo simbi pombi chairo uchishandisa madziro tsizenti ekuratidza madziro ekuratidzira madziro ebenzi pombi. Kune urwu rudzi rwembudzi resimbi, nzira yekutaura pombi kunze kweDhivha Semuenzaniso: φ60 × 3.8

De, dn, d, ф yehuwandu hwakaringana hwekutaura!
De-- ppr, pe pipe pombi, polypropylene pombi od
DN - Polyethylene (PVC) PIPE, Kanda pombi yesimbi, simbi-pombi yemapipi, galvanized simbi pombi yezita
D - Concrete pombi nominal diameter
ф - Seamless Steel pombi nominal diameter